Three component telescope objective



May 3, 1966 E. J. LESCHER ETAL THREE COMPONENT TELESCOPE OBJECTIVB 2 Sheats-Sheet 1 Fi1ed Feb' 21 1963 ATTORNEYS y 3, 1966 E. LESCHER ETAL 3,249,009

THREE COMPONENT TELESCOPE OBJECTIVE Filed Feb. 21 1963 2 Sheets-Sheet 2 INVEN+ORS Edmund Jokob Lescher A|brech* W"helm Tronnier 

1. A TELESCOPIC OBJECTIVE LENS COMPRISING, BEGINNING AT THE LONG CONJUGATE SIDE THEREOF, FRONT, MIDDLE AND REAR COMPONENTS L1, L2, AND L3, SAID LENS CONFORMING SUBSTANTIALLY TO THE FOLLOWING SPECIFICATION, WHEREIN F IS THE EQUIVALENT FOCAL LENGTH OF THE LENS: 